Assessing the Impact of Climate Change on Agricultural Production Using Crop Simulation Model

Annie Mangshatabam, Pal Raj kumar, Gawai Anjusha Sanjay, Sharma Aman

Cost-effectiveness analysis of ‘test and treat’ policy for antiretroviral therapy among heterosexual HIV population in India

Background & objectives: The World Health Organisation recommended immediate initiation of antiretroviral therapy (ART) in all adult human immunodeficiency virus (HIV) patients regardless of their CD4 cell count. This study was undertaken to ascertain the cost-effectiveness of implementation of these guidelines in India. Methods: A Markov model was developed to assess the lifetime costs and health outcomes of three scenarios for initiation of ART treatment at varying CD4 cell count <350/mm3, <500/mm3 and test and treat using health system perspective using life-time horizon. A few input parameters for this model namely, transition probabilities from one stage to another stage of HIV and incidence rates of TB were calculated from the data of Centre of Excellence for HIV treatment and care, Chandigarh; whereas, other parameters were obtained from the published literature. Total HIV-related deaths averted, HIV infections averted and incremental cost-effectiveness ratio per quality adjusted life years (QALYs) gained were calculated. Result: Test and treat intervention slowed down the progression of disease and averted 18,386 HIV-related deaths, over lifetime horizon. It also averted 16,105 new HIV infections and saved 343,172 QALYs as compared to the strategy of starting ART at CD4 cell count of 500/mm3. Incremental cost per QALY gained for the immediate initiation of ART as compared to ART at CD4 cell count of 500/mm3 and 350/mm3 was ? 46,599 and 80,050, respectively at reported rates of adherence to the therapy. Interpretation & conclusions: Immediate ART (test and treat) is highly cost-effective strategy over the past criteria of delayed therapy in India. Cost-effectiveness of this policy is largely because of reduction in the transmission of HIV

Prevalence of Antineutrophil Cytoplasmic Antibodies and Antinuclear Antibodies in Patients with Pulmonary Tuberculosis: A Tertiary Care Center Experience from North India

Background: Tuberculosis (TB) can have manifestations closely mimicking autoimmune diseases. The prevalence of autoantibodies in TB varies among different populations. Objectives: To study the prevalence of anti-neutrophilic cytoplasmic antibodies (ANCA) and antinuclear antibodies (ANA) in pulmonary tuberculosis (PTB). Methods: This was a cross-sectional, observational study. Subjects with microbiologically confirmed PTB, either via smear or culture positivity on sputum or bronchoalveolar lavage (BAL) fluid, or positive rapid diagnostic tests were included. ANCA against proteinase-3 (PR3), myeloperoxidase (MPO), lactoferrin, and elastase were tested using an enzyme-linked immunosorbent assay (ELISA). ANA was detected using indirect immunofluorescence (IIF). Results: Eighty-nine subjects with a median [interquartile range (IQR)] age of 28 (20–46) years, 67.4% males, were recruited. Eighty-one subjects had microbiological confirmation on sputum examination, and eight required examination of BAL fluid. Sera were drawn from 62 treatment-naïve subjects, the rest (27) were on antitubercular therapy (ATT). Eighty-six (96.6%) subjects tested positive for anti-elastase antibody, seven of which were also positive for anti-PR3. None were positive for anti-MPO and anti-lactoferrin. Six (6.7%) subjects tested positive for ANA. None of the subjects had features of underlying connective tissue disease or vasculitis. Conclusion: PTB patients showed a high prevalence of anti-elastase and a low prevalence of ANA and anti-PR3 antibodies. ANCA positivity should be interpreted with caution in TB endemic areas. The role of anti-elastase antibodies in differentiating TB from ANCA-associated vasculitis (AAV) needs further research.

Morphological characterization of subretinal hyper-reflective material in posterior uveitis using swept-source optical coherence tomography and optical coherence tomography angiography

Purpose: To analyze the structural features of subretinal hyper-reflective material (SHRM) in posterior uveitis using swept-source optical coherence tomography (SS-OCT) and optical coherence tomography angiography (SS-OCTA). Methods: In this observational study, subjects with quiescent posterior uveitis and the presence of SHRM on SS-OCT were subjected to SS-OCTA to identify the presence of an intrinsic choroidal neovascular (CNV) network. OCT features were compared for SHRM harboring CNV (vascular SHRM) with those without CNV network (avascular SHRM) to identify clinical signs pointing toward the presence of CNVM inside SHRM. Results: Forty-two eyes of 33 subjects (18 males; mean age: 29.52 ± 12.56 years) were evaluated. Two-thirds (28/42) of eyes having SHRM on SS-OCT harbored intrinsic neovascular network (vascular SHRM). Increased reflectivity of SHRM (P < 0.001) and increased transmission of OCT signal underlying SHRM (P = 0.03) were suggestive of the absence of CNVM. The presence of intra/subretinal fluid (P = 0.08) and pitchfork sign (P = 0.017) were important markers of vascular SHRM. Conclusion: SHRM is an important OCT finding in eyes with posterior uveitis. Meticulous assessment of SHRM characteristics on SS-OCT can aid in identifying the underlying intrinsic neovascular network.

Oral valganciclovir in human immunodeficiency virus-positive patients suffering from cytomegalovirus retinitis at a tertiary care hospital in North India

Purpose: To study clinical efficacy of valganciclovir in cytomegalovirus retinitis (CMVR) in human immunodeficiency virus (HIV)?positive?positive patients in a tertiary care clinic in a developing nation. Methods: In a retrospective study, systemic and ocular records of HIV patients suffering from CMVR and treated with valganciclovir, were analyzed. Primary outcome measures were involvement of the other eye, incidence of retinal detachment, systemic involvement, and mortality encountered. Secondary outcome measures included change in BCVA. Results: Out of nine patients who were included, two patients developed CMVR in the other eye and only one patient (11.11%) developed retinal detachment during the course of the study. No patient developed any systemic manifestations or had mortality during the course of the study. The change in BCVA was not statistically significant. Conclusion: Use of oral valganciclovir showed good outcome and was found to be a better alternative compared to the use of intravitreal ganciclovir in the literature. Introduction of valganciclovir at an affordable price in developing nations can decrease disease burden

Intensity-modulated radiation therapy in head-and-neck carcinomas: Potential beyond sparing the parotid glands

Head-and-neck cancer (HNC) is in close proximity to several critical structures. Intensity-modulated radiation therapy (IMRT) has the potential of generating highly conformal and concave dose distributions around complex target and is ideally suited for HNC treatment. Conventionally, the focus of IMRT for HNC patients has been on prevention of radiation-induced parotid dysfunction. In the present article, we review the potential of IMRT to reduce the risk of posttreatment aspiration and dysphagia and spare submandibular gland. We also discuss the impact of IMRT on overall survival and quality of life (QoL) for HNC patients. Small retrospective and prospective studies show that reducing dose to adjoining organs at risks is feasible and decreases the risk of posttreatment dysphagia and aspiration without compromising local control. IMRT is associated with improved QoL in several important domains including swallowing, dry mouth, sticky saliva, social eating, and opening of the mouth; however, improvement in global QoL is inconsistent. Delivery of IMRT for HNC is associated with improved survival at nasopharyngeal subsite. Small studies demonstrate improved treatment outcomes with swallowing-sparing IMRT. These results now need validation within the prospective multicenter randomized controlled trial setting

Role of MRI Evaluation in Knee Injuries

Knee is a major weight bearing and largest joint that provides mobility and stability during physical activities as well as balance while standing. Due to its wide range of functions it is exposed to forces beyond its physiological range, and thus bone and soft tissue of knee are at risk of injuries. We wanted to study MRI appearances of cruciate ligaments and meniscal tears in cases of knee injuries and correlate the MRI findings of knee injury with clinical observations/other radiological investigations/ arthroscopic findings. We also wanted to evaluate the sensitivity, specificity, PPV, NPV and accuracy of MRI in detecting knee injuries taking arthroscopy as gold standard (wherever performed).METHODSThis prospective diagnostic descriptive study was conducted in the Department of Radiodiagnosis of Maharishi Markandeshwar Institute of Medical Sciences and Research, MMDU, Mullana, among 100 patients presenting with knee injuries referred to Department of Radiodiagnosis for MR imaging. MR scans were carried out on 1.5 tesla MR machine Achieva (by Phillips Medical System) and studies were performed with the sense extremity coil. Arthroscopic knee surgery was performed in 39 patients. MR findings were correlated with clinical and arthroscopic findings wherever possible.RESULTSMR diagnosis of 100 cases was as follows: in ACL tear 50%; PCL tear 19%; MCL tear 17%; LCL tear 16%; MM tear 49%; LM tear 31%; Sensitivity, specificity, NPV, PPV and accuracy of MRI in detecting the knee injuries taking arthroscopy as gold standard are as follows ACL- 100%, 90.9%, 100%, 96.5% and 97.4 %; lateral meniscus-100%, 94.5%, 100%, 50% and 94.8%; medial meniscus 90.4%, 66.7%, 85.7%, 76% and 79.5% respectively. Correlation between MRI and arthroscopic findings regarding presence and absence of posterior cruciate ligament tear was highest with sensitivity -100%, specificity- 94.5%, NPV- 100% and accuracy-94.8%, There were 6 false positives for meniscus tear on MR examinations accounting for low positive predictive value (72%) of MR examination. Posterior horn tears of menisci are likely to be missed on arthroscopy. Out of 6 false positive cases of meniscus tear, 4 were located predominately in the posterior horn and 2 in the anterior horn. Thus, acceptance of MRI findings as false positive is controversial.CONCLUSIONSMRI is a useful non-invasive modality having high diagnostic accuracy, sensitivity and negative predictive value making it a very reliable screening test for diagnosis of internal derangements of knee joint. Thus, MRI saves many knees from unnecessary arthroscopies.

Spectrum of AIDS defining & non-AIDS defining malignancies in north India.

Background & objectives: There is scarcity of data on the frequency of malignancies in HIV infected individuals from India. The objective of this study was to determine the type and frequency of malignancies in HIV infected individuals attending a tertiary care hospital in north India. Methods: The study design included retrospective analysis of data of all HIV infected individuals registered in the Immunodeficiency clinic from December 2009 to December 2011 and a prospective analysis of HIV infected individuals registered from January 2012 to April 2013. The clinical details and treatment outcomes of all individuals diagnosed to have AIDS defining and non-AIDS defining malignancies were recorded. Results: Records of 2880 HIV infected individuals were reviewed. Thirty one (19 males, 12 females) individuals were diagnosed to have malignancy. AIDS defining malignancy was found in the form of non-Hodgkin’s lymphoma in 12 individuals and cervical cancer in six women. Non-AIDS defining malignancies included Hodgkin’s lymphoma (n=2); and chronic myelogenous leukaemia, carcinoma base of tongue, carcinoma larynx, carcinoma bronchus, sinonasal carcinoma, ovarian carcinoma, anal carcinoma, carcinoma urinary bladder, pleomorphic sarcoma, parathyroid adenoma, and renal cell carcinoma in one individual each. Mean CD4+cell count prior to ART initiation was 250 ± 195.6 (median: 187; range, 22-805) cells/μl and at the time of diagnosis of malignancy was 272 ± 202 (median: 202; range, 15-959) cells/μl. The mean CD4+ count of individuals with AIDS defining malignancy was significantly lower when compared with non-AIDS defining malignancy (P<0.001). Fourteen individuals were alive and on regular follow up, 15 had died and two cases were lost to follow up. Interpretation & conclusions: The frequency of malignancies in HIV infected patients at our centre was 1 per cent, with non-Hodgkin’s lymphoma being the commonest. Further studies need to be done to document similar data from different parts of the country.

Drug-induced diseases (DIDs): An experience of a tertiary care teaching hospital from India.

Background & objectives: Drug-induced diseases (DIDs) are well known but least studied. data on DIDs from India are not available. Hence, this retrospective cross-sectional study was undertaken using suspected adverse drug reaction (ADR) data collected form Pharmacovigilance Programme of India (PvPI) to evaluate profile of DIDs over two years, in a tertiary care teaching hospital from north India. Methods: the suspected ADRs in the form of DID were evaluated for drug and disease related variables and were classified in terms of causality. Results: DID rate was 38.80 per cent. Mean duration of developing DIDs was 26.05 ± 9.6 days; 25.16 per cent had more than one co-morbid condition. Geriatric population (53.99%) accounted for maximum DIDs followed by adult (37.79%) and paediatric (8.21%). Maximum events were probable (93.98%) followed by possible (6.04%). All DIDs required intervention. Gastritis (7.43%), diarrhoea (5.92%), anaemia (4.79%), hypotension (2.77%), hepatic dysfunction (2.69%), hypertension (1.51%), myalgia (1.05%), and renal dysfunction (1.01%) were some of the DIDs. Anti tubercular treatment (ATT ), anti retroviral treatment (ART), ceftriaxone injection, steroids, non-steroidal anti-inflammatory drugs, antimicrobials and anticancer drugs were found as commonly offending drugs. Interpretation & conclusions: Our findings show that DIDs are a significant health problem in our country, which need more attention.

of multiplex polymerase chain reaction using IS6110 and Protein b for the diagnosis of extra-pulmonary tuberculosis: North India.

Background: Prompt and accurate diagnosis of extra-pulmonary tuberculosis (TB) is highly challenging. Current conventional techniques lack sensitivity and are time-consuming. Here, we report our experience with multiplex polymerase chain reaction (MPCR) using two targets namely IS6110 and protein antigen b in the diagnosis of extra-pulmonary TB. Materials and Methods: A total of 150 patients of extra-pulmonary TB visiting tertiary care center in north India between September 2008 and December 2009 were included in the study. Sixty-six biopsy samples and 84 were body fluids from these patients were subjected for microscopy (Ziehl-Neelsen), culture on LJ medium and for Multiplex PCR using IS6110 and Protein b antigen. Results: Smear positivity was noted in 11 samples (7.33%), and LJ culture yielded Mycobacterium tuberculosis in 8 biopsies and 9 body fluids with overall positivity of 11.3%. The multi-targeted PCR could detect M. tuberculosis in a total of 112 samples. Of 112 positive samples, only Protein b band was detected in 7 samples and only IS6110 was detected in 5 samples. Overall Protein b, PCR could detect 71.33% of the cases, whereas IS6110 was positive in 66.6% of the cases. Overall the sensitivities of microscopy, culture, IS6110 PCR, Protein b PCR and MPCR were 7.33%, 11.3%, 66.67%, 71.3% and 74.6%, respectively. Thus by using more than two targets the sensitivity increased from 66.67% of IS6110 to 74.6% in MPCR. Conclusion: Multiplex polymerase chain reaction using IS6110 and Protein b antigen is a highly sensitive and specific tool in the diagnosis of pauci-bacillary conditions like extra-pulmonary TB.

Differential Effect of Paromomycin and Nitazoxanide on Clinical Isolates of Cryptosporidia In Vitro.

Background: Cryptosporidiosis is one of the most difficult protozoan infections to treat, with only two drugs i.e. nitazoxanide and paromomycin known for treatment with variable response in different patients. Human cryptosporidiosis is accounted mainly by C. hominis and C. parvum. These two species or their subtypes are known to differ in clinical manifestations, and may differ in their response to drugs. So, we planned the study to see the effect of nitazoxanide and paromomycin on different isolates of Cryptosporidium in vitro. Methods: MDCK cell lines were used for in vitro growth of parasite and cytotoxicity of drugs to MDCK cells was determined by MTT assay after 3, 12 and 24 hours of drug exposure. Efficacy of non-toxic drug concentrations (<25% cytotoxic) on 12 Cryptosporidium isolates (7 C. hominis and 5 C. parvum) was determined at three different life cycle stages (in vitro growth, invasion and oocyst) by quantitative RT-PCR. Unpaired t-test was used to calculate the difference response of Cryptosporidium isolates to nitazoxanide and paromomycin. Results and conclusions: Cytotoxicity of nitazoxanide and paromomycin increased in dose and time dependent manner. After 24 hours of drug exposure, >25% cytotoxic effect was seen with nitazoxanide and paromomycin at concentrations of more than, 25μg/ml and 6mg/ml, respectively. Nitazoxanide was more effective than paromomycin in decreasing in vitro growth, invasion inhibition and reducing oocyst viability of Cryptosporidium isolates. Drugs effect was higher on growth inhibition followed by invasion inhibition and least in decreasing oocyst viability. Different isolates had variable response to drugs; cumulatively C. parvum isolates were more susceptible at particular drug concentrations than C. hominis isolates.

Isosporiasis in a tertiary care center of North India.

Background: Cystoisospora (Isospora) belli is a coccidian, protozoan parasite that resides in the gastrointestinal tract of humans. It is mainly reported from HIV-positive individuals. However, a few cases have been reported in other immunosuppressed individuals including renal transplant patients, and those with lymphoma and leukemia. Materials and Methods: During a period of 5 years (2008-2012), approximately 1700 stool samples of immunosuppressed patients were screened for the presence of opportunistic parasitic infections by a modifi ed acid fast staining technique. Results: A total of 41 C. belli were reported, out of which 30 were HIV-positive individuals while 11 were HIV negative. The latter individuals were also immunosuppressed due to prolonged use of steroids or other immunosuppressive drugs. Twenty-six out of 30 HIVpositive patients and all the HIV-negative individuals with C. belli infection had diarrhea. Conclusion: All immunosuppressed individuals should be examined for the presence of opportunistic coccidian parasitic infections and treated accordingly and alternatively, isolation of opportunistic parasites should trigger a hunt for immunocompromised state to reduce the morbidity and mortality in such patients.

Prevalence and clinical patterns of psoriatic arthritis in Indian patients with psoriasis.

Background: The prevalence and clinical patterns of psoriatic arthritis (PsA) varies in different parts of the world and there is little clinical and epidemiological data from the Indian subcontinent. Aims: Our study was designed to evaluate the prevalence and clinical patterns of PsA in Indian patients. Methods: This was a non-interventional, cross-sectional study, in which 1149 consecutive psoriasis patients seen over 1 year were screened for PsA according to classification of psoriatic arthritis (CASPAR) criteria. Demographic and disease parameters were recorded including Psoriasis Area and Severity Index (PASI), Nail Psoriasis Severity Index (NAPSI), and number of swollen and tender joints. Results: Among 1149 patients with psoriasis, 100 (8.7%) patients had PsA, of which 83% were newly diagnosed. The most common pattern was symmetrical polyarthritis (58%), followed by spondyloarthropathy 49%, asymmetric oligoarthritis (21%), isolated spondyloarthropathy (5%), predominant distal interphalangeal arthritis (3%), and arthritis mutilans (1%). Enthesitis and dactylitis were present in 67% and 26% of cases, respectively. The mean number of swollen and tender joints were 3.63 ± 3.59 (range, 0-22) and 7.76 ± 6.03 (range, 1-26), respectively. Nail changes were present in 87% of the cases. The median PASI and NAPSI of the subjects with PsA was 3.6 and 20, respectively. There was no significant correlation of number of swollen/tender joints with PASI or NAPSI. Conclusion: There is a relatively low prevalence of PsA among Indian psoriasis patients presenting to dermatologists. No correlation was found between the severity of skin and nail involvement and articular disease

Outcome of surgery in post-cytomegalovirus retinal detachment: Experience before and in the era of highly active anti-retroviral therapy in Indian eyes.

Purpose: To evaluate the outcome of surgery for cytomegalovirus associated retinal detachment (CMVRD) in human immunodeficiency virus (HIV)‑infected patients in pre‑highly active antiretroviral therapy (HAART) and HAART era in Indian eyes. Materials and Methods: Retrospective, we reviewed medical records of all consecutive HIV patients, who underwent surgical repair for CMVRD from July 1998 to June 2011. We divided patients into two groups, i.e. group 1, pre HAART era and group 2, HAART era. We compared two groups for various parameters like visual outcome, surgical success, additional procedures, follow‑up, etc., Results: Twenty‑eight eyes of 26 patients were included; 12 eyes of the 11 patients in group 1 and 16 eyes of the 15 patients in group 2. Significant visual acuity improvement was seen in both groups. Complete anatomic success was seen in 11 eyes in group 1 and 15 eyes in group 2. One additional procedure in group 1 and 29 additional procedures were done in group 2. A mean follow‑up was 16 months in group 1 and 41 months in group 2. Conclusion: There was no difference in outcome in pre‑HAART and HAART group, except for longer follow‑up and additional surgical procedures in HAART group.

Dietary adequacy of HIV infected individuals in north India - A cross-sectional analysis.

Background & objectives: Dietary inadequacy is common in developing countries and so is in immunedeficient HIV infected individuals. Hence, an assessment of dietary patterns was done among a group of HIV infected individuals and compared with recommended dietary allowances. Methods: One hundred consecutive HIV infected individuals were interviewed from the Immunodeficiency Clinic of a tertiary care center at Chandigarh. Dietary intake was assessed by 24 h recall method. Mean carbohydrate, protein and fat intakes were evaluated. Mean difference in the calorie intake from recommended dietary intake was then calculated. Mean absolute CD4 cell count was calculated and correlated with BMI and mean calorie intake. Results: Mean weight and BMI of the individuals participated in the study was 58.6 ± 11.7 (range, 34 - 94) kg and 21.5 ± 3.7 (range, 13.6 - 36.7) kg/m2, respectively. Mean total calories intake was 1713 ± 292.8 (860 - 2525) calories/day and mean difference in the calories taken from the standard values was 249.5 ± 190.7 (10.6 - 967.5) calories/day. There was no significant correlation between CD4 cell count and total calories taken. Interpretation & conclusions: In HIV-infected individuals the energy intake was significantly lower than the recommended average intake. Hence, efforts should be taken to ensure that HIV-infected individuals have access to high-quality, nutritious food choices that promote optimal dietary patterns.

Management of psoriatic arthritis.

Psoriatic arthritis (PsA) is a chronic inflammatory disease that can be progressive and may be associated with permanent joint damage and disability. Early identification of PsA will enable these patients with progressive disease to be treated early and aggressively. Due to lack of consistent diagnostic or classification criteria in the past, PsA was considered as uncommon. Overall it affects 6-10% of all psoriasis patients during the course of their disease. Both dermatologists and rheumatologists should be involved in the diagnosis and management of this disorder. Interest in PsA has greatly enhanced over the past several years due to many factors including a better understanding of disease mechanisms, improved investigational tools, better clinical trial design and perhaps most importantly, the availability of newer therapeutic agents. Mild forms of PsA can initially be treated with nonsteroidal antiinflammatory drugs (NSAID). In acute as well as oligo- to polyarticular joint involvement, disease-modifying anti-rheumatic drugs (DMARD) are indicated for PsA. The biologics particularly tumor necrosis factor alpha (TNF- a) antagonists are gaining increasing significance as second-line therapy. Treatment choice should also take into consideration the extent of skin involvement.

Cryptococcal meningitis in HIV infected: experience from a North Indian tertiary center.

BACKGROUND: Cryptococcal meningitis is a common opportunistic infection in Human Immunodeficiency Virus (HIV)-infected individuals. There is little information specifically addressing cryptococcal meningitis in HIV-infected patients from North India. AIMS: To determine clinical presentation, hospital course, response to treatment, complications developed, in-hospital mortality, any recurrence of cryptococcal meningitis and reasons of recurrence during follow-up. SETTINGS AND DESIGN: A retrospective observational study undertaken in a large tertiary care center. PATIENTS AND METHODS: Patient's demographic data, presenting clinical symptomatology, physical findings, laboratory parameters, cerebrospinal fluid (CSF) examination findings, side-effects of treatment, development of any complications and hospital outcome were analyzed. During follow-up any recurrence of cryptococcal meningitis, possible reasons of recurrence, type of treatment received, complications developed and outcome was recorded as well. RESULTS: Forty patients diagnosed to have cryptococcal meningitis were analyzed. Twenty-two (55%) patients had acute/ subacute presentation. Thirty-six (90%) patients presented with headache and 18 (45%) had altered sensorium. Twenty (50%) patients had no cells in the CSF. Hypoglycorrhchia was seen in 30 (75%) patients. Cryptococcal meningitis was the first acquired immune deficiency syndrome (AIDS)-defining illness in 30 (75%) patients. Thirty-five patients developed some adverse effects to amphotericin-B. Thirty-three patients improved with treatment while three patients died. Four patients had recurrence of cryptococcal meningitis within six months of first episode. Non-compliance of fluconazole therapy was the reason for recurrence in all of these patients. CONCLUSIONS: Cryptococcal meningitis is a common initial AIDS-defining illness. Acute and/or subacute presentation of cryptococcal meningitis is not uncommon in HIV-infected individuals. An early diagnosis of HIV infection might reduce the incidence of this infection.

Improvement in CD 4 counts in HIV positive patients treated with HAART and antitubercular drugs: an observational study from North India.

A decrease in CD4 counts in HIV positive patients with concomitant tuberculosis leads to an increase in the morbidity and mortality. Little data exists about the use of antiretroviral drugs along with antitubercular drugs on the improvement in CD4 counts from this part of country. The records of 119 HIV and TB positive patients were obtained from immunodeficiency clinic of tertiary care centre of North India who were on drug treatment for both the diseases and were analysed for demographic profile and effects on CD4 counts. There was a statistically significant improvement in the CD4 counts of the patients as compared to their baseline values mean (SD) as 120.03 (124.1) at visit one to 270.2 (141.3) at visit two (p < 0.01) and 320.9 (184.3) at visit three (p < 0.05). Six patients died during the period of evaluation. Concomitant use of antitubercular drugs with antiretroviral drugs has resulted in a significant improvement in the CD4 counts which is a marker of delay in disease progression.