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2006

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Articles 1951 - 1980 of 2765

Full-Text Articles in Medicine and Health Sciences

Dual-Hit Hypothesis For Dopamine Neurodegeneration And Motor Dysfunction, Heather Anne Boger Jan 2006

Dual-Hit Hypothesis For Dopamine Neurodegeneration And Motor Dysfunction, Heather Anne Boger

MUSC Theses and Dissertations

Glial cell line-derived neurotrophic factor (GDNF) is a trophic factor for peripheral organs, spinal cord, and midbrain dopamine (DA) neurons. Studies have shown that GDNF levels decrease in the substantia nigra (SN) and striatum during normal aging and in patients with Parkinson's disease. Furthermore, exogenous GDNF infusion protects DA neurons against injury induced by 6-hydroxydopamine, MPTP, and methamphetamine (METH). A heterozygous mouse model was created to assess whether a chronic reduction in this neurotrophic factor impacts motor function and the nigrostriatal DA system during the aging process. In this dissertation, two models of dopaminergic loss and motor dysfunction were characterized. …


Compassion Fatigue In The Animal-Care Community, Charles R. Figley, Robert G. Roop Jan 2006

Compassion Fatigue In The Animal-Care Community, Charles R. Figley, Robert G. Roop

eBooks

Compassion fatigue---the exhaustion caused by the demands of being empathic and helpful to those who are suffering---is found at every level among the underserved, underappreciated, and uncomplaining caregivers in animal-related fields. In this ground-breaking book, two prominent leaders in the field examination the causes of compassion fatigue and offer help to those who suffer from it.

Compassion Fatigue in the Animal-Care Community is a must-read for animal shelter employees, volunteers, and board members veterinarians, and veterinary practice and veterinary hospital staffs wildlife rehabilitators breed-rescue or equine-rescue volunteers.


Restoration Of Glenohumeral Motion In Erb's Palsy By Tendon Transfers, Syed Kamran Ahmed, Pervaiz Mehmood Hashmi Jan 2006

Restoration Of Glenohumeral Motion In Erb's Palsy By Tendon Transfers, Syed Kamran Ahmed, Pervaiz Mehmood Hashmi

Section of Orthopaedic Surgery

Background: Children with erb's palsy have significant functional disability, mainly related to the shoulder. The objective of this study was to analyze the functional outcome of tendon transfers performed for restoration of shoulder motion in patients with Erb's palsy.
Methods: This descriptive case series was conducted at Aga Khan University Hospital from May 1999 to December 2003. Ten patients who had functional deficit of shoulder elevation were operated by a single surgeon. The surgical procedure; modified Sever L'Episcopo procedure was uniform in all cases. The data was collected through patient interviewing and medical records maintained through Health Information Management System …


Health Seeking Behavior Of Couples With Secondary Infertility, Neelofar Sami, Tazeen S. Ali Jan 2006

Health Seeking Behavior Of Couples With Secondary Infertility, Neelofar Sami, Tazeen S. Ali

School of Nursing & Midwifery

OBJECTIVE: To determine the factors affecting the health-seeking behavior of couples with secondary infertility in Karachi. DESIGN: A descriptive case series.
PLACE AND DURATION OF STUDY: The data was collected from women attending infertility clinics in five tertiary care hospitals in Karachi from March to June 2003. PATIENTS AND METHODS: All currently married women, between the age of 15-35 years, with at least one previous conception, irrespective of outcome, attending an infertility clinic and consenting to participate in the study, were included. Women with corrective surgery on vagina and uterus, and cases of primary infertility, were excluded. Multiple …


Evaluation Of A Cancer Awareness Campaign: Experience With A Selected Population In Karachi, Tazeen S. Ali, Sanah Baig Jan 2006

Evaluation Of A Cancer Awareness Campaign: Experience With A Selected Population In Karachi, Tazeen S. Ali, Sanah Baig

School of Nursing & Midwifery

The incidence and prevalence of cancer is rapidly increasing in both developed and developing countries. The most common cancers reported in Pakistan are breast and cervical cancers in females, and lung and oral cancers in males. Public awareness of cancer can play a vital role in its prevention, early diagnosis and treatment. A pilot survey conducted by the Cancer Support Group (CSG) of Aga Khan University Hospital from 2001 till 2004 to gauge the public awareness of cancer in Pakistan revealed that people were afraid of cancer and had little knowledge about its prevention and early detection. The survey also …


Understanding Of Puberty And Related Health Problems Among Female Adolescents In Karachi, Pakistan, Tazeen S. Ali, Parveen Azam Ali, Humaira Waheed, Azam Ali Memon Jan 2006

Understanding Of Puberty And Related Health Problems Among Female Adolescents In Karachi, Pakistan, Tazeen S. Ali, Parveen Azam Ali, Humaira Waheed, Azam Ali Memon

School of Nursing & Midwifery

Objectives: To understand the level of knowledge, a community based study conducted with the objectives as follows: To estimate the proportion of common facilities available and accessible and frequency of utilizing of it. To estimate the proportion of female adolescent utilizing the availability of facilities. To assess the level of understanding related to puberty and related health problems among female adolescents.
Methods
: This cross-sectional study was conducted to determine the understanding and level of knowledge related to puberty and related health problems among female adolescents of Karachi, Pakistan. Data was collected from 150 female adolescents between 10-19 years …


Frequency And Determinants Of Vaginal Infection In Postpartum Period: A Cross Sectional Survey From Low Socioeconomic Settlements, Karachi, Pakistan, Tazeen S. Ali, Fariyal F. Fikree, Mohammad H. Rahbar, Sadia Mahmud Jan 2006

Frequency And Determinants Of Vaginal Infection In Postpartum Period: A Cross Sectional Survey From Low Socioeconomic Settlements, Karachi, Pakistan, Tazeen S. Ali, Fariyal F. Fikree, Mohammad H. Rahbar, Sadia Mahmud

School of Nursing & Midwifery

Objective: To determine the frequency and factors associated with perceived vaginal infections among married women in their postpartum period.
Methods: A cross-sectional study was conducted from July 2000 to October 2000 in five squatter settlements of Karachi, Pakistan. These squatter settlements were selected on the basis of an existing surveillance system run by female community health workers for maternal and child healthcare which identified women who had delivered 42-56 days prior to the date of interview. Vaginal infection was considered present when a mother perceived foul smelling vaginal discharge during the postpartum period. Mothers were interviewed to gain …


Critical Evaluation Of The Claims Made By Pharmaceutical Companies In Drug Promotional Material In Pakistan, Dileep Kumar Rohra, Anwarul Hassan Gilani, Ismail Kamal Memon, Ghazala Perven, Muhammad Talha Khan, Hina Zafar, Rakesh Kumar Jan 2006

Critical Evaluation Of The Claims Made By Pharmaceutical Companies In Drug Promotional Material In Pakistan, Dileep Kumar Rohra, Anwarul Hassan Gilani, Ismail Kamal Memon, Ghazala Perven, Muhammad Talha Khan, Hina Zafar, Rakesh Kumar

Department of Biological & Biomedical Sciences

Background: In Pakistan, there is no mechanism to monitor the drug promotional campaign by pharmaceutical industry despite the fact that there is enough evidence that irrational pharmacotherapy is increasingly encountered even in the developed countries due to unethical practices of pharmaceutical promotion. Objectives. To audit the drug promotional claims made by the pharmaceutical companies in Pakistan.
Methods: Drug promotional pamphlets and brochures containing claims for the drugs, which were circulated by the pharmaceuticalrepresentatives were collected from 122 general practitioners (GPs) from Karachi and Larkana cities of the Sindh Province. The claims were critically analyzed and audited with the help of …


Site-Specific Labeling Of Supercoiled Dna., Alexander Y. Lushnikov, Vladimir N. Potaman, Yuri L. Lyubchenko Jan 2006

Site-Specific Labeling Of Supercoiled Dna., Alexander Y. Lushnikov, Vladimir N. Potaman, Yuri L. Lyubchenko

Journal Articles: Pharmaceutical Sciences

Visualization of site-specific labels in long linear or circular DNA allows unambiguous identification of various local DNA structures. Here we describe a novel and efficient approach to site-specific DNA labeling. The restriction enzyme SfiI binds to DNA but leaves it intact in the presence of calcium and therefore may serve as a protein label of 13 bp recognition sites. Since SfiI requires simultaneous interaction with two DNA recognition sites for stable binding, this requirement is satisfied by providing an isolated recognition site in the DNA target and an additional short DNA duplex also containing the recognition site. The SfiI/DNA complexes …


Ada News Convention Daily - 2006 Day 2, American Dental Association, Publishing Division Jan 2006

Ada News Convention Daily - 2006 Day 2, American Dental Association, Publishing Division

ADA News

The ADA News Daily (also called the ADA News Convention Daily) is a special edition of the ADA News published each day during American Dental Association Annual Sessions.


Ic107: Cultural Competence In Cancer Care: A Health Care Professional's Passport Pocket Guide, Intercultural Cancer Council Jan 2006

Ic107: Cultural Competence In Cancer Care: A Health Care Professional's Passport Pocket Guide, Intercultural Cancer Council

Informational and Promotional Materials

The Cultural Competence in Cancer Care: A Health Care Professional's Passport Pocket Guide is informational material published by the Intercultural Cancer Council in 2006. Organized using a travel metaphor with six "stops" that progressively take you on a journey of learning towards cultural competency as it relates to cancer care in the United States. The guide was designed for Health Care Professionals working with underserved populations. The guide enhanced "the existing information on cultural competency as a factor in prevention, early detection, screening, and intervention of cancer among racial/ethnic and socio-economic disadvantaged groups." See more at Intercultural Cancer Council Records …


Ic107: Brochure: Intercultural Cancer Council: Speaking With One Voice, Intercultural Cancer Council Jan 2006

Ic107: Brochure: Intercultural Cancer Council: Speaking With One Voice, Intercultural Cancer Council

Informational and Promotional Materials

See more at Intercultural Cancer Council Records.


An Electromyographic And Electrogoniometric Study Of Stair Climbing With And Without The Use Of The Ez-Stepª And The Quad-Stepª, Rebecca Behrens, Catherine Gregoire, Tara Mathern, Jennifer L. Pederson Jan 2006

An Electromyographic And Electrogoniometric Study Of Stair Climbing With And Without The Use Of The Ez-Stepª And The Quad-Stepª, Rebecca Behrens, Catherine Gregoire, Tara Mathern, Jennifer L. Pederson

Physical Therapy Scholarly Projects

Purpose: The purpose of this study is to compare lower extremity muscle activity along with hip and knee ROM in an elderly population on stair ascent and descent using the EZ-StepTM and Quad-StepTM in comparison to traditional stair climbing.

Subjects: Twenty nine male and female adults volunteered for this study. Inclusion criteria included those 65 years of age and older, ability to climb three flights of standard stairs, and upper extremity strength to be able to manipulate the Quad-Step TM.

Instrumentation: The EZ-StepTM and Quad-StepTM are devices that decrease stair step height by one-half. The EMG activity and ROM was …


Effect Of Instruction On Emg Activity Of The Rectus Abdominis During A Crunch On A Swiss Exercise Ball, Tina J. Boyer, Suzanne S. Hammer, Tyler L. Jepson, Eric G. Thompson Jan 2006

Effect Of Instruction On Emg Activity Of The Rectus Abdominis During A Crunch On A Swiss Exercise Ball, Tina J. Boyer, Suzanne S. Hammer, Tyler L. Jepson, Eric G. Thompson

Physical Therapy Scholarly Projects

Purpose: The purpose of this study was to assess the benefit of instruction from a physical therapist in participant performance of an abdominal crunch on a Swiss ball, determined through electromyography (EMG) of the rectus abdominis.

Subjects: Our subjects included male (n=15) and female (n=15) college students between the ages of 18-50 years old. Exclusion criteria included a history of low back pain, prior spine surgery, pregnancy, previous formal instruction of crunches on a Swiss ball, and an allergic reaction to rubbing alcohol. Instrumentation: EMG biofeedback was used to test rectus abdominis muscle activity. This activity was transmitted by a …


Effectiveness Of Pressure Biofeedback In Activation Of Transversus Abdominis During The Abdominal Draw-In Maneuver, Jenni L. Freie, Jan L. Kruse, Amanda M. Kvien, Kimberly M. Rzeszutko Jan 2006

Effectiveness Of Pressure Biofeedback In Activation Of Transversus Abdominis During The Abdominal Draw-In Maneuver, Jenni L. Freie, Jan L. Kruse, Amanda M. Kvien, Kimberly M. Rzeszutko

Physical Therapy Scholarly Projects

Study Design: Repeated Measures Design.

Objectives: To compare the recruitment of the transversus abdominis and internal oblique during the performance of the supine abdominal draw-in maneuver with the use of pressure biofeedback and without the use of pressure biofeedback. Muscle recruitment will be measured through the use of surface electromyography (EMG).

Background: Surface EMG reliability and validity is reported for transversus abdominis.

Methods: Thirty-nine healthy subjects of the ages 18 to 54 were tested. The subjects were instructed and performed practice trails of the supine draw-in maneuver with and without pressure biofeedback prior to data collection. EMG muscle activity was …


Lumbar Spine Extension Mobility Increases With Longer Participation In Football, Matthew Linback, Nicole Nord, Kari Pedersen Jan 2006

Lumbar Spine Extension Mobility Increases With Longer Participation In Football, Matthew Linback, Nicole Nord, Kari Pedersen

Physical Therapy Scholarly Projects

Purpose: Football players are known to develop lumbar spine pathologies, especially extension pathologies (Le., spondylolysis and spondylolisthesis). This study examined the possibility of increased mobility in the lumbar spine with increased exposure to football, possible correlating the increased motion with lumbar spine pathologies. Extension of the lumbar spine in college football players was measured and the results of two groups were compared: those who had completed one or two years of eligibility versus those who had completed three or four years. The influence of the collision nature of football on lumbar extension was examined.

Subjects: Thirty-nine male collegiate football players …


The Stem Cell Debate, William J. Wagner, Ursula Weide Jan 2006

The Stem Cell Debate, William J. Wagner, Ursula Weide

Scholarly Articles

No abstract provided.


Law, Religion, And Medical Science: Conjunctive Or Disjunctive?, George P. Smith Ii Jan 2006

Law, Religion, And Medical Science: Conjunctive Or Disjunctive?, George P. Smith Ii

Scholarly Articles

No abstract provided.


Using Focus Groups In The Consumer Research Phase Of A Social Marketing Program To Promote Moderate-Intensity Physical Activity And Walking Trail Use In Sumter County, South Carolina, Ericka L. Burroughs, Lara E. Peck, Patricia A. Sharpe, Michelle L. Granner, Carol A. Bryant, Regina Fields Jan 2006

Using Focus Groups In The Consumer Research Phase Of A Social Marketing Program To Promote Moderate-Intensity Physical Activity And Walking Trail Use In Sumter County, South Carolina, Ericka L. Burroughs, Lara E. Peck, Patricia A. Sharpe, Michelle L. Granner, Carol A. Bryant, Regina Fields

Faculty Publications

Introduction: The use of social marketing approaches in public health practice is increasing. Using marketing concepts such as the "four Ps" (product, price, place, and promotion), social marketing borrows from the principles of commercial marketing but promotes beneficial health behaviors. Consumer research is used to segment the population and develop a strategy based on those marketing concepts. In a community-based participatory research study, 17 focus groups were used in consumer research to develop a social marketing program to promote walking and other moderate-intensity physical activities.

Methods: Two phases of focus groups were conducted. Phase 1 groups, which included …


Dual Regulation Of Telomerase Activity By Hsf1 And Its Role In Prostate Cancer Progression, Keith Douglas Ostergaard Jensen Jan 2006

Dual Regulation Of Telomerase Activity By Hsf1 And Its Role In Prostate Cancer Progression, Keith Douglas Ostergaard Jensen

Theses and Dissertations

It has been shown that the key components of the hsp90 chaperone complex, including hsp90, p23, hsp70, hsp40, and HOP (p60), associate with telomerase; however, their specific roles in telomerase function and tumor progression have not yet been defined. HSF1, the primary mammalian heat shock protein transcription factor, may affect telomerase activity and transformation by regulating the expression of several hsp90 chaperone complex proteins in response to stress as well as regulating the transcription of hTERT, the protein subunit of telomerase.In our in vitro model of prostate cancer progression, as cells progress from immortal but non-tumorigenic (P69) to tumorigenic (M2182) …


Interspecies Pharmacokinetic Scaling And Metabolism Of Alcohols And Glycols, Pankaj Gupta Jan 2006

Interspecies Pharmacokinetic Scaling And Metabolism Of Alcohols And Glycols, Pankaj Gupta

Theses and Dissertations

Background: Despite the numerous pharmaceutical applications of alcohols andglycols, the interspecies differences with respect to their pharmacokinetics (PK) arepoorly understood. The aim of this research was to use in-vivo and in-vitro approaches to compare and model the PK characteristics across various species.Methods: Appropriate published in-vivo studies (in different species) foralcohols and glycols were carefully selected. PK analysis was performed using (a) noncompartmental analysis and (b) compartmental modeling to estimate relevant dose-independent PK parameters. Next, six alcohols (methanol, ethanol, 1 -propanol, 1 -butanol, 1-hexanol, and 1-octanol), two glycols (ethylene glycol and propylene glycol)and one secondary alcohol (2-propanol) were examined as in-vitro …


The False Wisdom Of Tuition Based Ranking Of Allied Health Programs, Is Your Program Affordable?, Tamara L. Little Phelan Jan 2006

The False Wisdom Of Tuition Based Ranking Of Allied Health Programs, Is Your Program Affordable?, Tamara L. Little Phelan

All Faculty Scholarship

Purpose: The purpose of this analysis was to investigate the extent to which the ranking of programs based on total tuition cost changes when housing and program length were added to total tuition. Method: To accomplish this, the cost of tuition at 13 physical therapist education programs was compiled. Programs were ranked from most expensive to least expensive. The costs associated with housing, program length, and lost opportunity to earn wages were then added to total tuition. Programs were again ranked from most expensive to least expensive. Results: Regional differences in the cost of living and the total length of …


The Ethics Of Genetic Testing And The Role Of The Professional Nurse In Practice, Brad J. Phillips Jan 2006

The Ethics Of Genetic Testing And The Role Of The Professional Nurse In Practice, Brad J. Phillips

Senior Honors Theses and Projects

No abstract provided.


Meaningful Labeling Of Integrated Query Interfaces, Eduard Dragut, Clement Yu, Weiyi Meng Jan 2006

Meaningful Labeling Of Integrated Query Interfaces, Eduard Dragut, Clement Yu, Weiyi Meng

Cyber Center Publications

The contents of Web databases are accessed through queries formulated on complex user interfaces. In many domains of interest (e.g. Auto) users are interested in obtaining information from alternative sources. Thus, they have to access many individual Web databases via query interfaces. We aim to construct automatically a well-designed query interface that integrates a set of interfaces in the same domain. This will permit users to access information uniformly from multiple sources. Earlier research in this area includes matching attributes across multiple query interfaces in the same domain and grouping related attributes. In this paper, we investigate the naming of …


Interdependency Of Pharmacokinetic Parameters: A Chicken-And-Egg Problem? Not!, Reza Mehvar Jan 2006

Interdependency Of Pharmacokinetic Parameters: A Chicken-And-Egg Problem? Not!, Reza Mehvar

Pharmacy Faculty Articles and Research

Pharmacokinetic (PK) software packages are widely used by scientists in different disciplines to estimate PK parameters. However, their use without a clear understanding of physiological parameters affecting the PK parameters and how different PK parameters are related to each other may result in erroneous interpretation of data. Often, mathematical relationships used for the estimation of PK parameters obscure the true physiological relationships among these parameters, prompting a discussion of which parameter came first and giving the appearance of the-chicken-and-the-egg dilemma. In this article, the author attempts to show how different PK parameters are related to physiological parameters and each other …


Cost Prevention Of Hiv, Jerika Lam Jan 2006

Cost Prevention Of Hiv, Jerika Lam

Pharmacy Faculty Articles and Research

"Since the introduction of highly active antiretroviral therapy (HAART) in the late 1990s, management of patients with human immunodeficiency virus (HIV) infection has improved where they are living longer and with fewer incidences of opportunistic illnesses. Furthermore, significant progress has been made in the understanding of the disease, the ability to quantify viral load and correlate with clinical outcomes, genotypic and phenotypic resistance assays designed to assess viral susceptibility, and a heightened awareness and appreciation of the importance of treatment adherence to ensure virologic suppression.' In spite of the benefits that HIV-infected patients may have acquired in terms of more …


Stromal Haze, Myofibroblasts, And Surface Irregularity After Prk, Marcelo V. Netto, Rajiv R. Mohan, Sunilima Sinha, Ajay Sharma, William Dupps, Steven E. Wilson Jan 2006

Stromal Haze, Myofibroblasts, And Surface Irregularity After Prk, Marcelo V. Netto, Rajiv R. Mohan, Sunilima Sinha, Ajay Sharma, William Dupps, Steven E. Wilson

Pharmacy Faculty Articles and Research

The aim of this study was to investigate the relationship between the level of stromal surface irregularity after photorefractive keratectomy (PRK) and myofibroblast generation along with the development of corneal haze.

Variable levels of stromal surface irregularity were generated in rabbit corneas by positioning a fine mesh screen in the path of excimer laser during ablation for a variable percentage of the terminal pulses of the treatment for myopia that does not otherwise generate significant opacity. Ninety-six rabbits were divided into eight groups[.]

Slit lamp analysis and haze grading were performed in all groups. Rabbits were sacrificed at 4 hr …


2,6-Hexadecadiynoic Acid And 2,6-Nonadecadiynoic Acid - Novel Synthesized Acetylenic Fatty Acids As Potent Antifungal Agents, Nestor Carballeira, David Sanabria, Clarisa Cruz, Keykavous Parang, Baojie Wan, Scott Franzblau Jan 2006

2,6-Hexadecadiynoic Acid And 2,6-Nonadecadiynoic Acid - Novel Synthesized Acetylenic Fatty Acids As Potent Antifungal Agents, Nestor Carballeira, David Sanabria, Clarisa Cruz, Keykavous Parang, Baojie Wan, Scott Franzblau

Pharmacy Faculty Articles and Research

The hitherto unknown 2,6-hexadecadiynoic acid, 2,6-nonadecadiynoic acid, and 2,9-hexadecadiynoic acid were synthesized in two steps and in 11–18% overall yields starting from either 1,5-hexadiyne or 1,8-nonadiyne. Among all the compounds 2,6-hexadecadiynoic acid displayed the best overall antifungal activity against both the fluconazole resistant Candida albicans strains ATCC 14053 and ATCC 60193 (MIC = 11 μM) and against Cryptococcus neoformans ATCC 66031 (MIC < 5.7 μM). The 2,9-hexadecadiynoic acid did not display any significant cytotoxicity against the fluconazole resistant C. albicans strains, but it showed fungitoxicity against C. neoformans ATCC 66031 with a MIC value of <5.8 μM. Other fatty acids, such as 2-hexadecynoic acid, 5-hexadecynoic acid, 9-hexadecynoic acid, and 6-nonadecynoic acid were also synthesized and their antifungal activities compared. The 2-hexadecynoic acid, a known antifungal fatty acid, exhibited the best antifungal activity (MIC = 9.4 μM) against the fluconazole resistant C. albicans ATCC 14053 strain, but it showed a MIC value of only 100 μM against C. albicans ATCC 60193. The fatty acids 2,6-hexadecadiynoic acid and 2-hexadecynoic acid also displayed a MIC of 140–145 μM towards Mycobacterium tuberculosis H37Rv in Middlebrook 7H12 medium. In conclusion, 2,6-hexadecadiynoic acid exhibited the best fungitoxicity profile compared to other analogues. This diynoic fatty acid has the potential to be further evaluated for use in topical antifungal formulations.


Does Falling Smoking Lead To Rising Obesity?, Jonathan Gruber, Michael D. Frakes Jan 2006

Does Falling Smoking Lead To Rising Obesity?, Jonathan Gruber, Michael D. Frakes

Faculty Scholarship

The strong negative correlation over time between smoking rates and obesity have led some to suggest that reduced smoking is increasing weight gain in the U.S.. This conclusion is supported by the findings of Chou et al. (2004), who conclude that higher cigarette prices lead to increased body weight. We investigate this issue and find no evidence that reduced smoking leads to weight gain. Using the cigarette tax rather than the cigarette price and controlling for non-linear time effects, we find a negative effect of cigarette taxes on body weight, implying that reduced smoking leads to lower body weights. Yet …


Optimal Therapy Regimens For Treatment-Resistant Mutations Of Hiv, Weiqing Gu, Helen Moore Jan 2006

Optimal Therapy Regimens For Treatment-Resistant Mutations Of Hiv, Weiqing Gu, Helen Moore

All HMC Faculty Publications and Research

In this paper, we use control theory to determine optimal treatment regimens for HIV patients, taking into account treatment-resistant mutations of the virus. We perform optimal control analysis on a model developed previously for the dynamics of HIV with strains of various resistance to treatment (Moore and Gu, 2005). This model incorporates three types of resistance to treatments: strains that are not responsive to protease inhibitors, strains not responsive to reverse transcriptase inhibitors, and strains not responsive to either of these treatments. We solve for the optimal treatment regimens analytically and numerically. We find parameter regimes for which optimal dosing …