Evaluation of a Unani polyherbal formulation (Tiryaqe wabai) as an immunostimulator in elderly persons

Immunomodulatory effect of Unani polyherbal formulation - Tiryaq Wabai in mild to moderate COVID-19 patients - A randomized placebo-controlled clinical trial

BACKGROUND

The pathogenesis of COVID-19 includes an integrated immune-inflammatory response. Modulation of host immune responses against the SARS-CoV-2 virus might be effective therapeutic management. Various Unani formulations have an immunomodulatory effect.

OBJECTIVE

To explore the immunomodulatory effect and safety of Unani polyherbal drug (Tiryaq Wabai) in COVID-19 patients.

MATERIALS AND METHODS

The current study was a randomized placebo-controlled clinical trial that included 92 mild to moderate COVID-19 patients randomized into two groups. The Unani formulation Tiryaq Wabai (2 gm orally once a day) was used as an intervention for 45 days, while the control group received a placebo. Both groups received standard care treatment. The primary outcome was 50% increment in absolute lymphocyte count (ALC). The secondary outcome was 50% increment in mean lymphocyte percentage, CD4 cells, and CD8 cell count. The mean increase in all the above parameters has also been studied. Relevant statistical tests were used to analyze the effect.

RESULTS

A statistically significant improvement in a 50% increase in ALC (p-value, 0.004), lymphocyte percentage (p-value, 0.056), CD4 (p-value, 0.005), and CD8 cell count (p-value, 0.050) was reported. Also, a significant improvement in the mean value of the lymphocyte percentage (p-value 0.0007), ALC (p-value 0.0022), CD4 cell count (p-value 0.0025), and CD8 cell count (p-value 0.0093) was observed after the treatment. One adverse event of mild grade was reported in the placebo group. The analysis of safety parameters (LFT and KFT) was normal for both groups.

CONCLUSION

In mild to moderate COVID-19 patients, Tiryaq Wabai effectively showed immunomodulatory activity by improving ALC count, lymphocyte percentage, CD4, and CD8 cell count.

Overview of Covid-19; its prevention and management in the light of Unani medicine

Since December 2019, a respiratory pandemic named as coronavirus disease 2019 (Covid-19) caused by a new coronavirus named as SARS-CoV-2, has taken the world by storm. The symptoms are fever, malaise, and cough which resolve in a few days in most cases; but may progress to respiratory distress and organ failure. Transmission is through droplet infection or fomites, but other modes such as airborne transmission and oro-fecal transmission are also speculated. Research is underway to develop effective vaccines and medicines for the disease. In such a scenario, we present the measures described in Unani system of medicine for health protection during epidemics. Unani is a traditional system of medicine developed during the middle ages, which employs natural drugs of herbal, animal and mineral origin for treatment. In Unani medicine, during an epidemic, apart from isolation and quarantine, three measures are of utmost importance, (i) purification of surroundings using certain herbal drugs as fumigants or sprays, (ii) health promotion and immune-modulation, and (iii) use of health-protecting drugs and symptom-specific drugs. Drugs such as loban (Styrax benzoides W. G. Craib), sandroos (Hymenaea verrucosa Gaertn.) za'fran (Crocus sativus L.), vinegar etc. are prescribed in various forms. Scientific researches on these drugs reveal the presence of a number of pharmacologically active substances, which may provide a new insight into the management of infections and epidemics.

Methods of health promotion and disease prevention in Unani medicine

BACKGROUND

Better preventive care is a prerequisite to foster community health and in reducing the unnecessary burden on the health-care system. The Unani System of Medicine has given due emphasis on preventive care. This article aims to discuss the health promotion and disease prevention approaches in Unani Medicine.

MATERIALS AND METHODS

A manual literature survey of classical Unani texts such as Firdaus-al-hikmat, Al Qanoon-fit-tib, Kitab-al-mansoori, Kitab-al-kulliyat, and Kitab-al-taisir was conducted to collect the information available on the strategic approaches of health promotion and disease prevention in Unani Medicine. To obtain the appropriate English equivalent words for Unani terms and the scientific name of the drugs, "Standard Unani Medical Terminology" and "Classification of Unani Drugs" were consulted, respectively.

RESULTS

The findings of the literature survey revealed that Unani physicians have advocated the personalized and predictive approaches for maintaining health and preventing diseases. Personalized approach mainly centers on the temperament of an individual. By determining an individual's temperament, Unani physician can tell what is adequate or not adequate for the individual. While in the predictive approach, correct knowledge of prodromal symptoms is a prerequisite to predict the future developments in the human body and recommending the appropriate preventive measures accordingly.

CONCLUSION

These approaches present interesting perspectives in the field of promotive and preventive care and are of much relevance in the present scenario. Unfortunately, the lack of efficacy studies is a limiting factor in their application. Hence, effective protocol must be developed to provide evidence-based data and to give grounds for their widespread usage.